Curtain-cord tightener



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(No Model.) I Y O. SOHWAIBOLD.

CURTAIN 001w TIGHTENER. No} 252,807. Patented Jan. 24,1882.

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UNITED STATES PATENT @EEEQE.

CHARLES SGHWAIBOLD, OF BROOKLYN, NEW YORK.

CURTAIN-CORD TIGHTENER.

SPECIFICATION formingpart of Letters Patent No. 252,807, dated January24, 1882.

Application filed July 23, 1881.

which receives the endless cui tain-cord. When this old device isapplied to use the axis of the thumb button is broughtinto adifl'erentplane from that of the curtain-roller, and hence it isnecessary to twist the cord in placing it on the button, which isobjectionable, because the cord is thus rendered liable to slip off ofits pulley on the curtain-roller, and also because the cord is therebyretarded in its motion.

The object of my invention is to overcome these objections; and to thisend it consistsin arranging on the locking-slide a pulley whose axis issubstantially at a right angle to that of the thumb-button, so that itis brought parallel to the curtain-roller.

This invention is illustrated in the accompanying drawings, in whichFigure 1 represents a front view including the curtain-roller. Fig. 2 isa side view of the ti tener.

Similar letters indicate corresponding parts.

Theletter A designates the locking-slide; B, its thumb-button; O, thepulley, and D the slotted guide-bracket.

(No model.)

The locking-slide Amoves in and engages the slot of the bracket D in awell-known manner, and the thumb -button B projects outwardly therefrom,while the pulley G is on the side thereof, so that the axes of thebutton and the pulley are at right angles to each other.

When the tightencr is put up the pulley 0 should be brought in avertical plane with the pulley O of the curtain-roller, and if thecurtain-cord e is passed from the curtain-roller around the pulley G,the cord is left straight or untwisted, and can be moved in eitherdirection without danger of its slipping off from the roller or beingretarded in its motion.

I am aware that it is old to construct a cordtightener with a pulleyhaving its axis parallel to that of the shade-roller, and I make noclaim to such feature, broadly.

What I claim as new,and desire to secure by Letters Patent, is-

The combination, substantially as hereiubefore set forth, of thelocking-slide, constructed with the thumb-button and the pulley, havingtheir axes substantially at right angles to each other, and the slottedguide bracket, for the purpose specified.

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing witnesses.

GHARLES SUHWAIB OLD.

